1225031 玖、發明說明 (發明說明應敘明：發明所屬之技術領域、先前技術、內容、實施方式及圖式簡單說明) ㈠發明所屬之技術領域_ 本發明是關於一種吊重機器，其特別適於應用到升降機系 統中。 (二)先前技術 一種具有吊重機器之升降機系統被揭示於P2000- 1 6727A中 。此升降機系統包括有在電梯通道中之一對導軌垂直地配置 成已知間隔，以及一個車廂可由導軌而垂直地移動。車廂包 含有一個門可供乘客上下之用，並且有一對導輪支持在車廂 之底部。一條纏繞在導輪之鋼纜具有一個部份在車廂下方移 動。鋼纜之一端由電梯通道中之天花板側鋼樑所支持。 然而，以上述升降機系統之時，吊重機器被配置在電梯通 道中，其一側之壁難以維修。再者，因爲被配置成平行於電 梯通道中之配重之故，吊重機器必須在深度及寬 度上要小，以使安裝性優點。另外，吊重機器必須具有更 簡單之結構及更高之可靠度。 (Ξ)發明內容 本發明主要目的在提供一種吊重機器，其維修性及安裝性 優異，並且製造成本低廉之下，具有更簡單之結構及更高之 可靠度。本發明之另一個目的在提供一種使用此吊重機器之 升降機系統。 一般上，本發明提供一種吊重機器，其包括有：固定部，此 固定部具有一個支柱，及與此支柱形成一體之固定骨架，以 及一個裝設在固定骨架之馬達定子；旋轉部，此旋轉部包括 有旋轉骨架，其爲經由軸承而可轉動地支持到支柱上，並且 面對固定骨架，一個槽輪與在與固定骨架對向之側的旋轉骨 -Ί 一 1225031 架形成一體，馬達轉子被配置在旋轉骨架之外周，以及一個 刹車輪，其與旋轉骨架形成一體，並且直徑比槽輪直徑更大 ;以及一個刹車裝置，其被裝設到固定骨架，並且與刹車輪 接觸而進行刹車作用。 ㈣實施方式 在進入本發明吊重機器之較佳實施例的敘述之前，揭示在 P2000 - 1 6727A中之升降機系統將更詳細地說明。參照第3-5 圖，升降機系統包括有在電梯通道1中之一對車廂導軌2A，2B 垂直地配置成已知間隔，以及一個車廂3可由導軌2A，2B而 垂直地移動。車廂3包含有一個門3a可供乘客上下之用，並 且有一對導輪4A，4B支持在車廂3之底部。一條纏繞在導輪 4A，4B之鋼纜5具有一個部份在車廂3下方移動。鋼纜5之 一端由電梯通道1中之天花板側鋼樑6所支持。 在電梯通道1中，有一對導輪7A , 7B被垂直地配置成與導 軌2A，2B平行，並且以一個已知間隔引導一個配重8垂直地 移動。一個導輪9被支持在配重8上。鋼纜5之另一端被纏 繞在導輪9上，並且由天花板側鋼樑6所支持。一個支持件 10被配置在電梯通道1之上部，並且有一個吊重機器11被 支持在其上。吊重機器1 1包括有一個槽輪1 2，其上可纏繞 鋼纜5，鋼纜5由此通過車廂3底部之導輪4A，4B而延伸到 配重8之導輪9。 吊重機器11主要包括一個基部13固定在支持件1〇上。具 體上，固定骨架15配置在基部13上，固定骨架15有一個垂 直面1 4，其上支持有一根固定軸1 6以懸掛方式垂直然後水 平地延伸。固定軸1 6包括有一個大直徑部份1 6 a在固定端側， 以及一個小直徑部份1 6b在自由端側。旋轉骨架1 7經由軸承 -8 - 1225031 18A，18B而可旋 轉地被支持在小直徑部份1 6b上。旋轉骨架1 7被形成類似 有底部之圓筒或杯子，其有盤狀底部1 7b，此底部具有軸承 支座17a及周壁17c配置在底部17b之周圍。爲了有底部之 圓筒之開口可接近固定骨架15之垂直面14，旋轉骨架17經 由軸承1 8A，1 8B而可旋轉地被支持在小直徑部份1 6b上。 轉子19被支持在旋轉骨架17之周壁17c的內周，並且對 轉子1 9具有徑向間隙之定子20被固定到固定骨架1 5。定子 2 0是由一個定子鐵心2 1及纒繞於其上之定子線圏2 2所形成， 並且經由托架23而固定到固定骨架15。轉子19，定子20，支 持定子20用之固定骨架15，支持轉子19用之旋轉骨架17 構成了外轉動式馬達。槽輪被固定到旋轉骨架17之底部17b 的外側，並且具有一個鋼纜溝1 2G。刹車裝置24配置在旋轉 骨架1 7之外周，並且如第4圖所示，包括有一對刹車臂25A， 25B，其一端支持在基部13上，一對剎車履26A，26B被刹車 臂25A，25B支持在中間部份內側，而面對旋轉骨架17之外 周，一對刹車軸27A，27B經由刹車臂25A，25B之另一端而 配置成彼此互相面對，一對刹車彈簧28A，28B配置成可使 剎車軸27A，27B彼此更靠在一起，並且有一個電磁鐵29被 用來使刹車軸27A，27B抵抗剎車彈簧28A，28B而分離。 管狀體30被配置成使旋轉骨架17之底部17b與固定軸16 成同軸心。感測器31被支持成可從兩側圍住一個形成在管狀 體30上之狹孔，用來檢知馬達之速度。1225031 发明 Description of the invention (The description of the invention should state: the technical field to which the invention belongs, the prior art, the content, the embodiments and the drawings) 简单 The technical field to which the invention belongs _ The present invention relates to a lifting machine, which is particularly suitable for For application to elevator systems. (II) Prior art A lift system with a lifting machine is disclosed in P2000-1 6727A. The elevator system includes a pair of guide rails vertically arranged at a known interval in an elevator passage, and a carriage can be moved vertically by the guide rails. The compartment bag contains a door for passengers to get on and off, and is supported by a pair of guide wheels at the bottom of the compartment. A wire rope wound around a guide wheel has a portion moving under the carriage. One end of the cable is supported by a ceiling-side steel beam in the elevator passage. However, in the above-mentioned elevator system, the hoisting machine is arranged in the elevator passage, and the wall on one side is difficult to maintain. Furthermore, because it is arranged parallel to the counterweight in the elevator passage, the hoisting machine must be small in depth and width in order to have an installability advantage. In addition, lifting machines must have a simpler structure and higher reliability. (I) Summary of the Invention The main object of the present invention is to provide a lifting machine which has excellent maintainability and installability, and has a low manufacturing cost, a simpler structure and higher reliability. Another object of the present invention is to provide an elevator system using the lifting machine. Generally, the present invention provides a hoisting machine, which includes: a fixed part, the fixed part has a pillar, a fixed skeleton integrated with the pillar, and a motor stator mounted on the fixed skeleton; a rotating part, the The rotating part includes a rotating skeleton, which is rotatably supported on the pillar via a bearing, and faces the fixed skeleton. A sheave is integrated with a rotating bone-Ί 1225031 frame on the side opposite to the fixed skeleton. The motor The rotor is arranged on the outer periphery of the rotating skeleton, and a brake wheel is formed integrally with the rotating skeleton and has a diameter larger than the diameter of the sheave; and a brake device is mounted to the fixed skeleton and is in contact with the brake wheel. Brake effect. ㈣Embodiment Before entering into the description of the preferred embodiment of the hoisting machine of the present invention, the elevator system disclosed in P2000-1 6727A will be explained in more detail. Referring to Figures 3-5, the elevator system includes one pair of carriage rails 2A, 2B vertically arranged at a known interval in the elevator passage 1, and one carriage 3 can be moved vertically by the rails 2A, 2B. The carriage 3 includes a door 3a for passengers to get on and off, and a pair of guide wheels 4A and 4B are supported at the bottom of the carriage 3. A steel cable 5 wound around the guide wheels 4A, 4B has a portion moving under the carriage 3. One end of the steel cable 5 is supported by a ceiling-side steel beam 6 in the elevator passage 1. In the elevator passage 1, a pair of guide wheels 7A, 7B are vertically arranged parallel to the guide rails 2A, 2B, and a counterweight 8 is guided to move vertically at a known interval. A guide wheel 9 is supported on the counterweight 8. The other end of the steel cable 5 is wound around a guide wheel 9 and is supported by a ceiling-side steel beam 6. A support member 10 is arranged above the elevator passage 1, and a hoisting machine 11 is supported thereon. The hoisting machine 11 includes a grooved wheel 12 on which a steel cable 5 can be wound. The steel cable 5 thus extends through the guide wheels 4A, 4B at the bottom of the carriage 3 to the guide wheel 9 of the counterweight 8. The hoisting machine 11 mainly includes a base 13 fixed on a supporting member 10. Specifically, the fixed skeleton 15 is arranged on the base portion 13, and the fixed skeleton 15 has a vertical surface 14 on which a fixed shaft 16 is supported in a hanging manner to extend vertically and then horizontally. The fixed shaft 16 includes a large diameter portion 16 a on the fixed end side, and a small diameter portion 16 b on the free end side. The rotating skeleton 17 is rotatably supported on the small-diameter portion 16b via bearings -8-1225031 18A, 18B. The rotating skeleton 17 is formed like a cylinder or cup with a bottom, which has a disc-shaped bottom 17b. This bottom has a bearing support 17a and a peripheral wall 17c arranged around the bottom 17b. In order that the opening of the cylinder with the bottom can approach the vertical surface 14 of the fixed frame 15, the rotating frame 17 is rotatably supported on the small-diameter portion 16b via bearings 18A, 18B. The rotor 19 is supported on the inner periphery of the peripheral wall 17c of the rotating skeleton 17, and a stator 20 having a radial gap to the rotor 19 is fixed to the fixed skeleton 15. The stator 20 is formed of a stator core 21 and a stator coil 222 wound thereon, and is fixed to the fixed frame 15 via a bracket 23. The rotor 19, the stator 20, the fixed skeleton 15 for supporting the stator 20, and the rotating skeleton 17 for supporting the rotor 19 constitute an external rotation type motor. The sheave is fixed to the outside of the bottom 17b of the rotating skeleton 17, and has a steel cable groove 12G. The brake device 24 is disposed on the outer periphery of the rotating skeleton 17 and includes a pair of brake arms 25A and 25B as shown in FIG. 4. One end thereof is supported on the base 13. Supported on the inner side of the middle portion and facing the outer periphery of the rotating skeleton 17, a pair of brake shafts 27A, 27B are arranged to face each other via the other ends of the brake arms 25A, 25B, and a pair of brake springs 28A, 28B are arranged so as to be able to face each other. The brake shafts 27A, 27B are brought closer to each other, and an electromagnet 29 is used to separate the brake shafts 27A, 27B against the brake springs 28A, 28B. The tubular body 30 is arranged so that the bottom 17 b of the rotating skeleton 17 is coaxial with the fixed shaft 16. The sensor 31 is supported so as to surround a narrow hole formed in the tubular body 30 from both sides for detecting the speed of the motor.
以上述構造之時，鋼纜由於通過槽輪1 2而使吊重機器1 1 驅動而被移動，因而使車廂在電梯通道中上下移動。吊重機 器11之制動是經由剎車彈簧28A，28B而使刹車履26A，26B -9 一 1225031 壓在旋轉骨架口之外周而進行的。 參照第6圖，其顯示一個升降機系統之相關技術之吊重機 器另一個例子。一個直立式托架33被配置在基部32上，並 且中心軸3 4被配置成從托架3 3上水平地延伸。槽輪3 6經由 軸承3 5而可旋轉地安裝到中心軸3 4上，並且形成有一個凹 部3 6 a，其爲開口在托架3 3側上。定子3 8包括有一個線圈 及一個鐵心，並且被裝設在凹部36a中。轉子39被固定到轂 部3 6b之外周上，此轂部形成槽輪36之凹部36a的內壁，而 面對定子38。轉子39亦包括有一個線圏及一個鐵心。槽輪36 有一個槽輪溝36c以及一個剎車履36d形成在外周。一個軸 承脫離止件40由螺栓41而被安裝在中心軸34之前端。一個 電磁剎車部42被裝設到直立托架33，而與剎車履36d啣接 〇 以第6圖之構造，當定子38通電之時，扭矩會在轉子39 中產生，此扭矩會轉移到槽輪3 6。槽輪3 6之旋轉會使車廂 經由鋼纜而上下移動。 以此相關技術之升降機系統時，吊重機器配置在電梯通道 中，其一側上具有一個壁，此會導致維修困難。再者，因爲 其被配置成與電梯通道中之配重平行，吊重機器必須在深度 及寬度上要小，並且安裝性必須優異始可。另外，吊重機器 必須具有較簡單的結構及較高的可靠度。 參照第1 A - 2B圖，顯示有本發明之一個實施例。吊重機器 43包括有固定部44及中空支柱45。 固定骨架46與支柱45 一端形成一體，其中一個旋轉感測器54被用來感測馬達之轉 速。與支柱45在相同方向上突出之一個突起46a被形成在固 定骨架46之外端。馬達定子47被配置在突起46a之內表面 - 1 0 - 1225031 。依此方式之時，支柱45、固定骨架46、及馬達定子47構 成吊重機器43之固定部44。 吊重機器43包括一個旋轉部48。旋轉骨架49被裝設成面 對固定骨架46，並且可旋轉地經由軸承5 0而被支持在支柱45 上。槽輪5 1在與固定骨架46相對向之側上與旋轉骨架49形 成一體，並且具有一個鋼纜溝5 1 a形成在外周。一條鋼纜被 纒繞在鋼纜溝5 1 a上，其可懸吊一個車廂在電梯通道中上下 移動。包含有永久磁鐵之馬達轉子52被配置在旋轉骨架49 之外周，而面對馬達定子47之內周。再者，一個剎車輪53 與旋轉骨架49形成一體，而從外周上突出。因此，剎車輪53 之直徑比旋轉骨架49及槽輪51之直徑更大。旋轉骨架49、 槽輪51、馬達轉子52，及刹車輪53構成吊重機器43之旋轉 部48。 感測器托架63由螺栓64在靠近槽輪5 1之處被安裝到旋轉 骨架49。托架部63 a被壓入配合到感測器托架63之中心。一 個突出部4 5 a被形成在支柱4 5之內周，並且一個環狀絕緣板 65由一個絕緣板固定螺栓66而被安裝到其上。支持件69之 一端由旋轉感測器固定螺栓68而被安裝到環狀絕緣板65，並 且另一端由螺栓70而被裝到旋轉感測器主體54a。另一方面， 旋轉感測器軸54b被配置成通過形成在感測器托架63之托架 部63a中之孔63b，並且被上鎖螺栓71所固定。四個調整孔 63c被配置在對應於感測器托架63之固定螺栓66，68等之位 置上。一個孔被形成在感測器托架63上對應於軸承50之外 端的位置，其中配合有一個黃油接頭等而形成一個黃油供給 口 7 2。軸承5 0包含有一個密封5 0 a被配置在與黃油供給側對 向之側上，使從黃油供給口 72所供應之黃油可被注入到軸承 - 11- 1225031 50中而不會在與黃油供給側對向之側上被排出。黃油排出口 73亦包含有一個孔形成在感測器托架63上對應於軸承50之 外端的位置。黃油排出口 73較佳爲配置在對黃油供給口 72 偏移成180度之位置上。 一對刹車臂56可旋轉地經由轉軸55而支持到固定骨架46， 並且其一端連結到一對相面對之刹車軸6 7之一端。用來提供 刹車力用之剎車彈簧5 7配置在刹車軸6 7之周圍。刹車軸6 7 之另一端被插入電磁鐵58中，其被作用時可放鬆剎車彈簧57 之剎車力。刹車軸67、剎車彈簧5 7，及電磁鐵58構成剎車 部。所有刹車臂56、刹車軸67、剎車彈簧5 7及電磁鐵58均 被配置在刹車輪5 3之水平中心線6 0下方。刹車墊5 9具有中 心線61位於中心線60下方成角度A。具體上，當轉軸55之 中心爲支點時，刹車墊59之接觸中心”a”，“b”爲作用點，並 且剎車臂56與剎車軸67之間的連接點”c”，“d”爲動力點，支 點、作用點、動力點均位於刹車輪5 3之水平中心線60下方 〇 當動力點”c”，“d”之間的距離爲”e”，並且作用點”a”，“b” 之間的距離爲”f”時，距離爲”e”小於” r’（e<f)。端子盒62被 配置在固定骨架46上位於槽輪51之側，並且在動力點”c”， “d”之側，以進行外側與馬達定子47、電磁鐵58、及旋轉感 測器54之間的電性連接。 以上述之構造，當定子47通電之時，與旋轉骨架49形成 一體之槽輪5 1被轉動，而使車廂經由鋼纜而在電梯通道中上 下移動。在槽輪5 1旋轉時，電磁鐵58之通電被停止，並且 剎車墊59被刹車彈簧57之偏壓力作用而抵在剎車輪53上。 在旋轉感測器54維修之時，固定旋轉感測器軸54b之上鎖螺 - 12- 1225031 栓7 1被放鬆，並且螺栓64被脫離，感測器托架63從旋轉骨 架49上移除，而從感測器托架63之托架部63a拉住旋轉感 測器軸54b。並且絕緣板固定螺栓66被鬆去，以從支柱45 移除旋轉感測器主體54a。因而，可使旋轉感測器54變成可 準備進行維修。被配置成對應於感測器托架63之固定螺栓66， 68等之調整孔63c鎖緊或放鬆時，可使旋轉感測器54在對 齊之時進行微細調整。 在此實施例中，維持旋轉運動之支柱45，與支柱45形成 一體之固定骨架46，及裝在固定骨架46上之馬達定子47構 成吊重機器43之固定部44，而可旋轉地支持在支柱45上之 旋轉骨架49，與旋轉骨架49形成一體之槽輪51，與旋轉骨 架49之外周形成一體且具有直徑比槽輪51之直徑大的刹車 輪53，配置在旋轉骨架49之外周的馬達轉子52構成了吊重 機器43之旋轉部48。此可使吊重機器43達成簡單且低價之 構造，且提高了可靠度，因而適合於應用到沒有機房之升降 機系統。 再者，固定骨架46被配置在電梯通道中之壁側上，使配置 在與固定骨架46對向之側上的槽輪5 1位於電梯通道之內側 上，導致鋼纜容易裝上或移除，以使車廂被懸吊到槽輪51。 再者，旋轉感測器54被容納在中空支柱45中，而可分離地 將旋轉感測器主體54a裝到其上，並且將旋轉感測器軸54b 螺鎖到可分離地裝在旋轉骨架49之感測器托架63，因而不 僅使旋轉感測器54由於移除感測器托架63而容易地從槽輪5 1 之側進行裝設/移除及維修，而且容易地從槽輪5 1之側進行 其他元件之維修。再者，黃油供給及排出口 72 , 7 3被形成在 對應於槽輪5 1側之軸承5 0的位置中之感測器托架6 3上，可 - 1 3 - 1225031 使得黃油可從槽輪5 1側被供給到軸承50，造成黃油很容易 供應及變化。再者，槽輪51之剎車是由壓迫剎車墊5 9到剎 車輪5 3而被執行。此鼓式刹車比內建式剎車在維修上較容易， 因爲後者必須拆卸馬達。更有者，電性連接用之端子盒62在 槽輪5 1之側被配置在固定骨架46上，可在槽輪5 1之側進行 配線連接之故，導致進行很容易。 再者，剎車輪53之馬達部被配置在旋轉骨架49之外周，並 且直徑比槽輪51者要大之故，可使得吊重機器43之厚度較 小，因而安裝性很優異。再者，刹車輪53被水平中心線60 分離，僅配置支點，作用點，剎車裝置之動力點在刹車輪53 的下外周部份，使得刹車裝置及使用此裝置之吊重機器43之 尺寸可被減少。更有者，動力點”c”，“d”之間的距離”e”比作 用點”a”，“b”之間的距離” f”更小，可確保剎車臂56之剛性 以及吊重機器43之寬度減少。再者，所有維修工作可從槽輪 5 1之側執行，在固定骨架46與電梯通道之壁之間不須要空 間，因此可使吊重機器43之尺寸大爲減少。 吊重機器43可被安裝到車廂或配重上以代替被固定在電梯 通道中。 在此已參照較佳實施例而說明本發明，須了解者本發明並 不限於此，在不違反本發明範圍之下可進行許多變化及修改 〇 在200 1年9月28日提出申請之日本專利申請案P200 1 -302049號在此加入做爲參考。 ㈤圖示簡單說明 本發明之其他目的及特徵可從下列說明，參考其附圖而了 解，其中： 一14 一 1225031 第1 A圖爲顯示本發明之升降機系統之吊重機器的一個實施 例之前視圖； 第1 B圖是顯示吊重機器，一半顯示剖面之側視圖； 第2A圖是顯示吊重機器之片斷的前視圖； 第2B圖是顯示吊重機器之片斷縱剖面圖； 第3圖是類似於第1 B圖，係顯示一個升降機系統之相關技 術之吊重機器之視圖； 第4圖是類似於第1 A圖，係顯示相關技術之吊重機器之視 圖； 第5圖係顯示一個相關技術之升降機系統之透視圖； 第6圖是類似於第3圖，係顯示一個升降機系統之另一個 相關技術之吊重機器之視圖。 主要部份之代表符號說明 1 電梯通道 2A， 2B 導軌 3 車廂 4A, 4B 導輪 5 鋼纜 6 天花板側鋼樑 7A, 7B 導輪 8 配重 9 導輪 10 支持件 11 吊重機器 12 槽輪 12G 鋼纜溝 - 15- 1225031 13 基部 14 垂直面 15 固定骨架 16 固定軸 16a 大直徑部份 16b 小直徑部份 17 旋轉骨架 17a 軸承支座 17b 底部 17c 周壁 19 轉子 20 定子 21 定子鐵心 22 定子線圈 23 托架 25A, 25B 刹車臂 2 6 A , 26B 刹車履 27A , 27B 刹車軸 28A , 28B 刹車彈簧 29 電磁鐵 30 管狀體 31 感測器 32 基部 33 托架 34 中心軸 35 軸承 -16- 1225031 36a 凹部 36b 轂部 36c 槽輪溝 36d 剎車履 38 定子 39 轉子 42 電磁剎車部 43 吊重機器 44 固定部 44 固定部 45 中空支柱 45a 突出部 46 固定骨架 4 6a 突起 47 馬達定子 48 旋轉部 49 旋轉骨架 50 軸承 51 槽輪 51a 鋼纜溝 52 馬達轉子 53 刹車輪 54 旋轉感測器 54a 旋轉感測器主體 54b 旋轉感測器軸 55 轉軸 -17- 1225031 56 剎車臂 57 剎車彈簧 58 電磁鐵 59 剎車墊 60 水平中心線 60 中；L·、線 62 端子盒 63 感測器托架 63a 托架部 63b 孔 6 3c 調整孔 64 螺栓 65 環狀絕緣板 66 絕緣板固定螺栓 67 剎車軸 68 旋轉感測器固定螺栓 69 支持件 70 螺栓 70 螺栓 71 上鎖螺栓 72 黃油供給口 73 黃油排出口With the above-mentioned structure, the steel cable is moved by driving the hoisting machine 1 1 by the sheaves 12, thereby moving the carriage up and down in the elevator passage. The brake of the hoisting machine 11 is carried out by pressing the brake shoes 26A, 26B -9-1225031 on the outer periphery of the rotating frame via the brake springs 28A, 28B. Referring to Fig. 6, there is shown another example of the hoisting machine of the related art of the elevator system. An upright bracket 33 is arranged on the base 32, and the central shaft 34 is arranged to extend horizontally from the bracket 33. The sheave 36 is rotatably mounted on the central shaft 34 via a bearing 35, and is formed with a recess 3a, which is an opening on the bracket 33 side. The stator 38 includes a coil and a core, and is installed in the recess 36a. The rotor 39 is fixed to the outer periphery of the hub portion 36b which forms the inner wall of the recessed portion 36a of the sheave 36 and faces the stator 38. The rotor 39 also includes a coil and a core. The sheave 36 has a sheave groove 36c and a brake shoe 36d formed on the outer periphery. A bearing release stopper 40 is attached to the front end of the center shaft 34 by a bolt 41. An electromagnetic brake portion 42 is mounted to the upright bracket 33 and is connected to the brake shoe 36d. With the structure shown in FIG. 6, when the stator 38 is energized, torque is generated in the rotor 39, and this torque is transferred to the slot. Round 3 6. The rotation of the sheaves 36 causes the carriage to move up and down via the steel cable. In the elevator system of this related technology, the hoisting machine is arranged in the elevator passage and has a wall on one side, which will cause maintenance difficulties. Furthermore, because it is arranged parallel to the counterweight in the elevator passage, the hoisting machine must be small in depth and width, and the installability must be excellent. In addition, the lifting machine must have a simpler structure and higher reliability. Referring to Figures 1A-2B, an embodiment of the present invention is shown. The hoisting machine 43 includes a fixing portion 44 and a hollow pillar 45. The fixed frame 46 is integrated with one end of the pillar 45, and a rotation sensor 54 is used to sense the rotation speed of the motor. A projection 46a protruding in the same direction as the pillar 45 is formed at the outer end of the fixed skeleton 46. The motor stator 47 is arranged on the inner surface of the protrusion 46a-1 0-1225031. In this manner, the pillar 45, the fixed frame 46, and the motor stator 47 constitute the fixed portion 44 of the hoisting machine 43. The hoisting machine 43 includes a rotating portion 48. The rotating skeleton 49 is installed to face the fixed skeleton 46 and is rotatably supported on the pillar 45 via a bearing 50. The sheave 51 is integrally formed with the rotating skeleton 49 on the side opposite to the fixed skeleton 46, and has a steel cable groove 5a formed on the outer periphery. A steel cable is wound around the steel cable trench 5 1 a, which can suspend a carriage and move up and down in the elevator passage. The motor rotor 52 including a permanent magnet is disposed on the outer periphery of the rotating skeleton 49 and faces the inner periphery of the motor stator 47. Furthermore, one brake wheel 53 is integrated with the rotating skeleton 49 and protrudes from the outer periphery. Therefore, the diameter of the brake wheel 53 is larger than the diameters of the rotating skeleton 49 and the sheave 51. The rotating frame 49, the sheave 51, the motor rotor 52, and the brake wheel 53 constitute a rotating portion 48 of the hoisting machine 43. The sensor bracket 63 is attached to the rotating frame 49 by a bolt 64 near the sheave 51. The bracket portion 63 a is press-fitted to the center of the sensor bracket 63. A projection 45a is formed on the inner periphery of the pillar 45, and a ring-shaped insulating plate 65 is mounted thereon by an insulating plate fixing bolt 66. One end of the supporting member 69 is attached to the ring-shaped insulating plate 65 by the rotation sensor fixing bolt 68, and the other end is attached to the rotation sensor body 54a by the bolt 70. On the other hand, the rotary sensor shaft 54b is configured to pass through a hole 63b formed in a bracket portion 63a of the sensor bracket 63, and is fixed by a lock bolt 71. The four adjustment holes 63c are arranged at positions corresponding to the fixing bolts 66, 68, etc. of the sensor bracket 63. A hole is formed in the sensor bracket 63 at a position corresponding to the outer end of the bearing 50, in which a grease connector or the like is fitted to form a grease supply port 72. Bearing 5 0 contains a seal 5 0 a, which is arranged on the side opposite to the butter supply side, so that the butter supplied from the butter supply port 72 can be injected into the bearing-11-1225031 50 without being in contact with the butter. The supply side is discharged on the side opposite to it. The butter discharge port 73 also includes a hole formed in the sensor bracket 63 at a position corresponding to the outer end of the bearing 50. The butter discharge port 73 is preferably disposed at a position offset from the butter supply port 72 by 180 degrees. A pair of brake arms 56 are rotatably supported to the fixed frame 46 via a rotation shaft 55, and one end thereof is connected to one end of a pair of facing brake shafts 67. A brake spring 57 is provided around the brake shaft 67 to provide braking force. The other end of the brake shaft 6 7 is inserted into the electromagnet 58, which can relax the braking force of the brake spring 57 when it is applied. The brake shaft 67, the brake spring 57 and the electromagnet 58 constitute a brake portion. All the brake arms 56, the brake shaft 67, the brake spring 57 and the electromagnet 58 are arranged below the horizontal center line 60 of the brake wheel 53. The brake pads 59 have a center line 61 located at an angle A below the center line 60. Specifically, when the center of the rotating shaft 55 is a fulcrum, the contact centers "a" and "b" of the brake pad 59 are the application points, and the connection points "c" and "d" of the brake arm 56 and the brake shaft 67 are The power point, the fulcrum, the action point, and the power point are all below the horizontal center line 60 of the brake wheel 53. When the power point "c" and "d" are the distance "e", and the action point "a", " When the distance between b "is" f ", the distance is" e "less than" r '(e < f). The terminal box 62 is arranged on the fixed frame 46 on the side of the grooved wheel 51 and at the power point "c" "," "D" side for electrical connection between the outer side and the motor stator 47, the electromagnet 58, and the rotation sensor 54. With the above-mentioned structure, when the stator 47 is energized, it is formed with the rotating skeleton 49 The integrated sheave 51 is rotated to move the carriage up and down in the elevator passage through the steel cable. When the sheave 51 is rotated, the energization of the electromagnet 58 is stopped, and the brake pad 59 is biased by the biasing force of the brake spring 57 It acts on the brake wheel 53. When the rotation sensor 54 is maintained, the rotation sensor shaft 54b is fixed. Locking screw-12- 1225031 The bolt 7 1 is loosened and the bolt 64 is disengaged, the sensor bracket 63 is removed from the rotating skeleton 49, and the rotation feeling is pulled from the bracket portion 63 a of the sensor bracket 63 The sensor shaft 54b. And the insulating plate fixing bolt 66 is loosened to remove the rotation sensor body 54a from the pillar 45. Therefore, the rotation sensor 54 can be made ready for maintenance. It is configured to correspond to the sensing When the adjustment holes 63c of the fixing bolts 66, 68, etc. of the bracket 63 are locked or loosened, the rotation sensor 54 can be fine-adjusted when aligned. In this embodiment, the pillar 45 that maintains the rotation movement, and The pillar 45 forms an integral fixed skeleton 46, and the motor stator 47 mounted on the fixed skeleton 46 constitutes the fixed portion 44 of the hoisting machine 43. The rotary skeleton 49 rotatably supported on the pillar 45 is integrated with the rotary skeleton 49. The sheave 51 is formed integrally with the outer periphery of the rotating skeleton 49 and has a brake wheel 53 having a larger diameter than the diameter of the sheave 51. The motor rotor 52 disposed on the outer periphery of the rotating skeleton 49 constitutes the rotating part 48 of the hoisting machine 43. This makes the lifting machine 43 simple and It has a cost-effective structure and improved reliability, so it is suitable for application to elevator systems without machine rooms. Furthermore, the fixed frame 46 is arranged on the wall side in the elevator passage, so that it is arranged on the side opposite to the fixed frame 46 The sheave 51 is located on the inner side of the elevator passage, causing the steel cables to be easily mounted or removed, so that the carriage is suspended to the sheave 51. Furthermore, the rotation sensor 54 is accommodated in the hollow pillar 45, and The rotation sensor main body 54a is detachably attached thereto, and the rotation sensor shaft 54b is screw-locked to the sensor bracket 63 detachably attached to the rotation skeleton 49, thereby not only making the rotation sensor 54 As the sensor bracket 63 is removed, installation / removal and maintenance are easily performed from the side of the sheave 51, and maintenance of other components is easily performed from the side of the sheave 51. In addition, the butter supply and discharge ports 72, 7 3 are formed on the sensor bracket 63 in a position corresponding to the bearing 50 on the side of the sheave 51, and the butter can be removed from the groove. The wheel 51 side is supplied to the bearing 50, so that the butter is easily supplied and changed. The braking of the sheave 51 is performed by pressing the brake pad 59 to the brake wheel 53. This drum brake is easier to maintain than the built-in brake, because the latter must disassemble the motor. Furthermore, the terminal box 62 for electrical connection is arranged on the fixed frame 46 on the side of the sheave 51, and wiring can be performed on the side of the sheave 51, which makes it easy to perform. Furthermore, since the motor portion of the brake wheel 53 is disposed on the outer periphery of the rotating frame 49 and has a larger diameter than that of the grooved wheel 51, the thickness of the hoisting machine 43 can be made smaller, and thus the mountability is excellent. In addition, the brake wheel 53 is separated by the horizontal center line 60, and only the fulcrum, the action point, and the power point of the brake device are located at the lower and outer periphery of the brake wheel 53, so that the size of the brake device and the lifting machine 43 using the device can be adjusted. Was reduced. Furthermore, the distance "e" between the power points "c" and "d" is smaller than the distance "f" between the action points "a" and "b", which can ensure the rigidity and lifting weight of the brake arm 56 The width of the machine 43 is reduced. Furthermore, all maintenance work can be performed from the side of the sheave 51, and no space is required between the fixed frame 46 and the wall of the elevator passage, so that the size of the hoisting machine 43 can be greatly reduced. Instead of being fixed in the elevator passage, the hoisting machine 43 may be mounted on a carriage or a counterweight. The invention has been described herein with reference to preferred embodiments. It should be understood that the invention is not limited to this, and many changes and modifications can be made without departing from the scope of the invention. Japan, which filed an application on September 28, 2001 Patent application No. P200 1-302049 is incorporated herein by reference. ㈤A brief description of other objects and features of the present invention can be understood from the following description with reference to the accompanying drawings, among which: 14-1225031 FIG. 1A is a diagram showing one embodiment of the lifting machine of the elevator system of the present invention View; Figure 1B is a side view showing the hoisting machine and half of the section; Figure 2A is a front view showing a part of the hoisting machine; Figure 2B is a longitudinal section view showing the part of the hoisting machine; Figure 3 It is similar to FIG. 1B, showing a view of a hoisting machine of related technology of a lift system; FIG. 4 is similar to FIG. 1A, showing a view of a hoisting machine of related technology; FIG. 5 is a view showing A perspective view of a related art elevator system; FIG. 6 is similar to FIG. 3 and is a view showing another related art lifting machine of an elevator system. Description of the main symbols of the main part 1 Elevator passage 2A, 2B guide rail 3 Car 4A, 4B Guide wheel 5 Steel cable 6 Ceiling side beam 7A, 7B Guide wheel 8 Counterweight 9 Guide wheel 10 Supporting parts 11 Lifting machine 12 Slot 12G steel cable trench-15- 1225031 13 base 14 vertical surface 15 fixed frame 16 fixed shaft 16a large diameter portion 16b small diameter portion 17 rotating frame 17a bearing support 17b bottom 17c peripheral wall 19 rotor 20 stator 21 stator core 22 stator coil 23 Bracket 25A, 25B Brake arm 2 6 A, 26B Brake shoe 27A, 27B Brake shaft 28A, 28B Brake spring 29 Electromagnet 30 Tubular body 31 Sensor 32 Base 33 Bracket 34 Center shaft 35 Bearing -16-1225031 36a Recessed part 36b Hub part 36c Groove groove 36d Brake shoe 38 Stator 39 Rotor 42 Electromagnetic brake part 43 Hoisting machine 44 Fixing part 44 Fixing part 45 Hollow post 45a Protruding part 46 Fixing skeleton 4 6a Protrusion 47 Motor stator 48 Rotating part 49 Rotating skeleton 50 bearing 51 sheave wheel 51a steel cable groove 52 motor rotor 53 brake wheel 54 Sensor 54a Rotary sensor body 54b Rotary sensor shaft 55 Rotary shaft -17-1225031 56 Brake arm 57 Brake spring 58 Electromagnet 59 Brake pad 60 Horizontal center line 60; L ·, line 62 Terminal box 63 Sensing Bracket 63a bracket portion 63b hole 6 3c adjustment hole 64 bolt 65 ring insulation plate 66 insulation plate fixing bolt 67 brake shaft 68 rotation sensor fixing bolt 69 support 70 bolt 70 bolt 71 lock bolt 72 butter supply port 73 butter outlet